Table 1 Description of categorical variables
n | Proportion of entire dataset (%) | Incidence of significant bacterial growth (%) | Variance | |
|---|---|---|---|---|
Positive culture | 57,857 | 27·19 | ||
Negative culture | 154,771 | 72·81 | ||
Patient groups | ||||
Persistent/recurrent infection | 47,348 | 22·28 | 37·68 | 0·17 |
Pregnant | 28,222 | 13·28 | 7·16 | 0·12 |
Renal inpatient/outpatient | 11,755 | 5·55 | 26·20 | 0·05 |
Pre-operative patient | 9463 | 4·45 | 21·84 | 0·04 |
Acute kidney disease | 3891 | 1·83 | 31·23 | 0·02 |
Immunocompromised | 2114 | 0·66 | 23·18 | 0·01 |
Multiple Sclerosis | 1046 | 0·49 | 24·38 | 0·005 |
Inpatient | 43,349 | 20·40 | 20·81 | 0·16 |
Positive for nitrates | 5895 | 2·80 | 59·73 | 0·03 |
Offensive smell | 270 | 0·10 | 55·19 | 0·001 |
Pyuria, no RBCs | 24,587 | 11·60 | 52·27 | 0·10 |
Haematuria, no WBCs | 368 | 0·002 | 0·06 | 0·002 |
Age | ||||
< 11 years old | 14,594 | 6·87 | 17·23 | |
Gender | ||||
Males | 54,070 | 25·40 | 21·58 | |
Females (total) | 158,422 | 74·60 | 26·76 | |
Females (not pregnant) | 130,200 | 61·29 | 33·85 | |